64370-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64370-26-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,3,7 and 0 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 64370-26:
(7*6)+(6*4)+(5*3)+(4*7)+(3*0)+(2*2)+(1*6)=119
119 % 10 = 9
So 64370-26-9 is a valid CAS Registry Number.
64370-26-9Relevant articles and documents
Improved Procedure for Conversion of Penicillin V into Monocyclic β-Lactams
Davis, Michael,Wu, Wen-Yang
, p. 223 - 229 (2007/10/02)
Improved procedures for the preparation of the Kamiya compound (3R,4R)-4-(benzothiazol-2'-yldithio)-3-phenoxyacetamidoazetidin-2-one (6) from penicillin V (1) are described.A novel feature is ozonolysis, near room temperature, in aqueous methanol in the p
